CN103137080B - 一种led背光驱动电路、液晶显示装置和一种驱动方法 - Google Patents

一种led背光驱动电路、液晶显示装置和一种驱动方法 Download PDF

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Publication number
CN103137080B
CN103137080B CN201310081767.7A CN201310081767A CN103137080B CN 103137080 B CN103137080 B CN 103137080B CN 201310081767 A CN201310081767 A CN 201310081767A CN 103137080 B CN103137080 B CN 103137080B
Authority
CN
China
Prior art keywords
drive circuit
backlight drive
constant
current driven
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201310081767.7A
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English (en)
Chinese (zh)
Other versions
CN103137080A (zh
Inventor
张华�
黎飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to CN201310081767.7A priority Critical patent/CN103137080B/zh
Priority to PCT/CN2013/072720 priority patent/WO2014139154A1/fr
Priority to US13/880,741 priority patent/US20140265925A1/en
Publication of CN103137080A publication Critical patent/CN103137080A/zh
Application granted granted Critical
Publication of CN103137080B publication Critical patent/CN103137080B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/395—Linear regulators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
CN201310081767.7A 2013-03-14 2013-03-14 一种led背光驱动电路、液晶显示装置和一种驱动方法 Expired - Fee Related CN103137080B (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201310081767.7A CN103137080B (zh) 2013-03-14 2013-03-14 一种led背光驱动电路、液晶显示装置和一种驱动方法
PCT/CN2013/072720 WO2014139154A1 (fr) 2013-03-14 2013-03-15 Circuit d'attaque de rétroéclairage à led, dispositif d'affichage à cristaux liquides et procédé d'attaque pour circuit d'attaque de rétroéclairage à led
US13/880,741 US20140265925A1 (en) 2013-03-14 2013-03-15 Led backlight driving circuit, lcd device, and method for driving the led backlight drving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310081767.7A CN103137080B (zh) 2013-03-14 2013-03-14 一种led背光驱动电路、液晶显示装置和一种驱动方法

Publications (2)

Publication Number Publication Date
CN103137080A CN103137080A (zh) 2013-06-05
CN103137080B true CN103137080B (zh) 2015-07-15

Family

ID=48496835

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310081767.7A Expired - Fee Related CN103137080B (zh) 2013-03-14 2013-03-14 一种led背光驱动电路、液晶显示装置和一种驱动方法

Country Status (2)

Country Link
CN (1) CN103137080B (fr)
WO (1) WO2014139154A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105792410B (zh) * 2016-03-03 2017-06-23 深圳市质能达微电子科技有限公司 电源传输路径与数据传输路径分离的led驱动系统
CN109152132B (zh) * 2018-08-16 2019-12-03 西安电子科技大学 一种多路led调光电路
CN209070956U (zh) 2019-01-02 2019-07-05 北京京东方光电科技有限公司 背光驱动电路、背光源及显示装置
CN112102788B (zh) * 2020-09-18 2021-12-28 深圳创维－Rgb电子有限公司 一种恒流背光输出通道控制系统及显示设备
TWI785680B (zh) * 2021-07-14 2022-12-01 元太科技工業股份有限公司 射頻整流器電路及電子紙顯示裝置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009016280A (ja) * 2007-07-06 2009-01-22 Nec Lcd Technologies Ltd 発光制御回路、発光制御方法、面照明装置及び該面照明装置を備えた液晶表示装置
CN201667742U (zh) * 2010-01-22 2010-12-08 青岛海信电器股份有限公司 一种发光二极管led背光驱动装置及液晶显示器
CN202258258U (zh) * 2011-07-25 2012-05-30 深圳市华星光电技术有限公司 Led背光驱动电路
CN102637412A (zh) * 2012-04-28 2012-08-15 深圳市华星光电技术有限公司 一种led背光驱动电路、液晶显示装置和一种驱动方法
CN102956204A (zh) * 2012-11-30 2013-03-06 深圳市华星光电技术有限公司 一种led背光驱动电路、背光模组和液晶显示装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004008840T2 (de) * 2003-07-07 2008-06-19 Rohm Co., Ltd., Kyoto Lasttreibervorrichtung und tragbare Vorrichtung, die solche Lasttreibervorrichtung verwendet
US8686937B2 (en) * 2005-10-29 2014-04-01 Lg Display Co. Ltd. Backlight unit with feedback circuit and driving method using the same
CN201576049U (zh) * 2009-11-30 2010-09-08 宁波三星电气股份有限公司 电能表的计量模块
TWI437927B (zh) * 2010-08-02 2014-05-11 Au Optronics Corp 液晶顯示器之背光模組保護電路
KR20120020481A (ko) * 2010-08-30 2012-03-08 삼성전자주식회사 발광 구동 장치, 디스플레이 장치 및 그 구동 방법
CN102750911B (zh) * 2012-07-10 2015-11-25 深圳市华星光电技术有限公司 一种led背光驱动电路、背光模组和液晶显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009016280A (ja) * 2007-07-06 2009-01-22 Nec Lcd Technologies Ltd 発光制御回路、発光制御方法、面照明装置及び該面照明装置を備えた液晶表示装置
CN201667742U (zh) * 2010-01-22 2010-12-08 青岛海信电器股份有限公司 一种发光二极管led背光驱动装置及液晶显示器
CN202258258U (zh) * 2011-07-25 2012-05-30 深圳市华星光电技术有限公司 Led背光驱动电路
CN102637412A (zh) * 2012-04-28 2012-08-15 深圳市华星光电技术有限公司 一种led背光驱动电路、液晶显示装置和一种驱动方法
CN102956204A (zh) * 2012-11-30 2013-03-06 深圳市华星光电技术有限公司 一种led背光驱动电路、背光模组和液晶显示装置

Also Published As

Publication number Publication date
CN103137080A (zh) 2013-06-05
WO2014139154A1 (fr) 2014-09-18

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Granted publication date: 20150715